Find the square root of each of the following numbers by division method
(i)2304 (ii)4489 (iii)3481 (iv)529 (v)3249
(vi)3169
The chance that four students A, B, C ,D solve a problem are 1/2 , 1/3,1/4,1/4 respectively. If all of them try to solve a problem, what is the probability that the problem is solved?